Quote Originally Posted by ath View Post
from the HP of Wolfgang Moersch:

Haltbarkeit Konzentrat 2-3 Jahre, nach Anbruch in Abhängigkeit von der Füllhöhe ca. 1 Jahr
Keeping properties unopened bottle: 2-3 years, after opening depending on amount left ca. 1 year

Haltbarkeit der Arbeitslösung 1-2 Monate
Keeping properties working solution: 1-2 months

Kapazität pro Liter Konzentrat ca. 200 Blatt 24x30cm
capacity per liter concentrate: ca. 200 sh 24x30cm.
I think that the keeping properties mentioned of 1-2 months are based on closed bottles and not in the open air...